VoiceXML (
VXML) is a digital document standard for specifying interactive media and voice dialogs between humans and computers. It is used for developing audio and voice response applications, such as banking systems and automated customer service portals. VoiceXML applications are developed and deployed in a manner analogous to how a
web browser interprets and visually renders the
Hypertext Markup Language (HTML) it receives from a
web server. VoiceXML documents are interpreted by a
voice browser and in common deployment architectures, users interact with voice browsers via the
public switched telephone network (PSTN).